Hole saw



FIG. 1 is a perspective view of a first embodiment of a hole saw showing the present invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view being thereof;

FIG. 6 top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the figures show structure or boundaries that are not part of the claimed design. 

CLAIM The ornamental design for hole saw, as shown and described. 